Geometrical dependence of Josephson current induced by ferromagnetic resonance in ferromagnetic Josephson junctions

S. Hikino, M. Mori, S. Takahashi, S. Maekawa

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

We study the effect of the spin dynamics on the phase dynamics in a ferromagnetic Josephson junction, which is composed of two superconductors separated by a ferromagnet. A new phenomenological model for the phase variable is proposed by including the spin dynamics excited by a ferromagnetic resonance (FMR) in the gauge invariant phase of s-wave SC's. We find that the I-V characteristics show step structures due to the FMR. The step amplitude induced by FMR in the I-V characteristic has a strong dependence on the geometry of the cross section in the junction.

Original languageEnglish
Pages (from-to)S819-S821
JournalPhysica C: Superconductivity and its applications
Volume470
Issue numberSUPPL.1
DOIs
Publication statusPublished - 2010 Dec

Keywords

  • Ferromagnet
  • Ferromagnetic resonance
  • Josephson effect
  • Superconductor

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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